Mercor
MercorVerified listing

Chemistry Expert - Remote Part-Time Position

65–105/hr
Remote
part-time
Posted September 15, 2026
Not sure you qualify? Match your resume

Listing checked September 16, 2026 · pay as published by Mercor

Key details

Pay
$65–105/hr
Location
Remote
Job type
part-time
Posted
September 15, 2026

Overview

Mercor connects AI research teams with chemists who can supply expert judgment for model training and evaluation. The listing is a standing pool rather than a single opening, so projects can start on short notice when a client needs chemistry expertise. Work may involve building synthesis or characterization problems, grading proposed routes and mechanisms, and catching plans that fail in practice because of side reactivity, workup losses, or reagent limits. Past rates for this kind of engagement have ranged from $65 to $105 per hour, set by project scope and depth. Chemists in the pool get invited to specific assignments that list the rate, hours, and client.

What You'll Do5

  • Write original synthesis or characterization problems from your own lab work, including substrate, conditions, analytical data, and the reference answer used to grade a model.
  • Review model-proposed synthetic routes and mechanisms for sensible disconnections, supported selectivity claims, and spectra that match assigned structures.
  • Identify proposals that look plausible on paper but would fail at the bench due to side reactivity, workup losses, or reagent incompatibility.
  • Explain your reasoning in clear written form so model outputs can be scored against your standards.
  • Flag ambiguous instructions or missing context before completing an evaluation.

Requirements5

  • Graduate degree in chemistry or a related field.
  • Laboratory or computational research experience.
  • Clear written communication, since most work involves explaining your reasoning.
  • Comfort with ambiguous tasks and willingness to flag unclear instructions.
  • Recent enough experience running reactions and interpreting data to explain the calls you made.

Who Should Apply

The best fit is a chemist with a graduate degree and recent bench or computational research experience, someone who can explain why a route, selectivity call, or spectral assignment holds up. You should be comfortable writing detailed rationales and working from incomplete prompts. The pool suits candidates who want project-based part-time work, not those seeking a fixed schedule or guaranteed full-time hours. Applications often score low when they list coursework without describing reactions they ran or data they interpreted themselves. Another common miss is a vague written answer that does not show the chemistry judgment behind a decision.

Salary Insight

Past projects have paid $65 to $105 per hour. The range depends on project scope and depth, so the upper end tends to match more complex evaluation or problem-writing work. No rate attaches to the pool listing itself; each client assignment names its own pay when it opens.

Pay and demand for AI Training roles

Market estimates from live NearSkill listings — separate from this job's published terms.

Aggregated

This role · as published

$65–105/hr

Taken from the listing itself.

Typical pay · estimated

$68/hour

Median of 1,191 similar roles that publish pay · 300 publish only a top rate; those count at the rate they gave

Most AI Training roles pay $38–$95 per hour. This role's pay falls inside that range.

Typical rangeMedian payThis role

Rates shown per hour. Yearly and monthly pay converted; one-time fees and non-USD pay are not included.

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Figures from AI Training roles live on NearSkill when this page loaded. A role can close before you apply, so check the listing itself.

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Required skills

ChemistryOrganic ChemistrySynthesisCharacterizationReaction MechanismsNmr SpectroscopyMass SpectrometryHplcComputational ChemistryAnalytical ChemistryChemical SynthesisSelectivitySpectral AnalysisModel EvaluationAI TrainingData AnnotationScientific WritingResearch

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  2. 2. Finish on the employer’s site

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  3. 3. Wait for a response

    The employer’s hiring team reviews applications and gets back to you.

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